diff --git a/x/cert/legacy/v2/store.go b/x/cert/legacy/v2/store.go
index 639a76bfe..303cd22c5 100644
--- a/x/cert/legacy/v2/store.go
+++ b/x/cert/legacy/v2/store.go
@@ -2,6 +2,7 @@ package v2
 
 import (
 	"github.com/cosmos/cosmos-sdk/codec"
+	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
 	"github.com/cosmos/cosmos-sdk/store/prefix"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 
@@ -25,12 +26,48 @@ func migrateCertificate(store sdk.KVStore, cdc codec.BinaryCodec) error {
 		}
 		cert.Certifier = shentuAddr
 
+		transistCertContent(&cert)
+
 		bz := cdc.MustMarshalLengthPrefixed(&cert)
 		oldStore.Set(iterator.Key(), bz)
 	}
 	return nil
 }
 
+func transistCertContent(certificate *types.Certificate) {
+	switch certificate.GetContent().(type) {
+	case *types.OracleOperator:
+		contentShentu, err := common.PrefixToShentu(certificate.GetContentString())
+		if err != nil {
+			return
+		}
+		content := types.OracleOperator{Content: contentShentu}
+		setContentAny(certificate, &content)
+	case *types.ShieldPoolCreator:
+		contentShentu, err := common.PrefixToShentu(certificate.GetContentString())
+		if err != nil {
+			return
+		}
+		content := types.ShieldPoolCreator{Content: contentShentu}
+		setContentAny(certificate, &content)
+	case *types.Identity:
+		contentShentu, err := common.PrefixToShentu(certificate.GetContentString())
+		if err != nil {
+			return
+		}
+		content := types.Identity{Content: contentShentu}
+		setContentAny(certificate, &content)
+	}
+}
+
+func setContentAny(certificate *types.Certificate, content types.Content) {
+	any, err := codectypes.NewAnyWithValue(content)
+	if err != nil {
+		panic(err)
+	}
+	certificate.Content = any
+}
+
 func migrateCertifier(store sdk.KVStore, cdc codec.BinaryCodec) error {
 	oldStore := prefix.NewStore(store, types.CertifiersStoreKey())
 
diff --git a/x/cert/legacy/v2/store_test.go b/x/cert/legacy/v2/store_test.go
index 37325cca8..327832fc5 100644
--- a/x/cert/legacy/v2/store_test.go
+++ b/x/cert/legacy/v2/store_test.go
@@ -17,7 +17,7 @@ import (
 
 	shentuapp "github.com/shentufoundation/shentu/v2/app"
 	"github.com/shentufoundation/shentu/v2/common"
-	v280 "github.com/shentufoundation/shentu/v2/x/cert/legacy/v2"
+	v2 "github.com/shentufoundation/shentu/v2/x/cert/legacy/v2"
 	"github.com/shentufoundation/shentu/v2/x/cert/types"
 )
 
@@ -25,7 +25,7 @@ func makeCertificate(certType string) types.Certificate {
 	_, _, addr := testdata.KeyTestPubAddr()
 	certifier, _ := common.PrefixToCertik(addr.String())
 
-	content := types.AssembleContent(certType, "test")
+	content := types.AssembleContent(certType, certifier)
 	msg, ok := content.(proto.Message)
 	if !ok {
 		panic(fmt.Errorf("%T does not implement proto.Message", content))
@@ -81,7 +81,7 @@ func TestMigrateStore(t *testing.T) {
 	ctx := app.BaseApp.NewContext(false, tmproto.Header{Time: time.Now().UTC()})
 	cdc := shentuapp.MakeEncodingConfig().Marshaler
 
-	oldCertificate := makeCertificate("AUDITING")
+	oldCertificate := makeCertificate("IDENTITY")
 
 	oldCertifier := makeCertifier(oldCertificate.Certifier, "test_certifier")
 
@@ -92,7 +92,7 @@ func TestMigrateStore(t *testing.T) {
 
 	oldLibrary := saveLibrary(cdc, store)
 
-	err := v280.MigrateStore(ctx, app.GetKey(types.StoreKey), cdc)
+	err := v2.MigrateStore(ctx, app.GetKey(types.StoreKey), cdc)
 	require.NoError(t, err)
 
 	//check for Certificate
@@ -109,6 +109,7 @@ func TestMigrateStore(t *testing.T) {
 	bz = store.Get(types.CertifierStoreKey(certifierAcc))
 	cdc.MustUnmarshalLengthPrefixed(bz, &certifier)
 	require.Equal(t, newCertifierAddr, certifier.Address)
+	require.Equal(t, newCertifierAddr, cert.GetContentString())
 
 	newCertifierProposer, _ := common.PrefixToShentu(oldCertifier.Proposer)
 	require.Equal(t, newCertifierProposer, certifier.Proposer)